In this paper, distributed power control is proposed as a
means to improve the energy efficiency of routing algorithms
in ad hoc networks. Each node in the network estimates the
power necessary to reach its own neighbors, and this power
estimate is used both for tuning the transmit power (thereby
reducing interference and energy consumption) and as the
link cost for minimum energy routing. With reference to
classic routing algorithms, such as Dijkstra and Link State, as
well as more recently proposed ad hoc routing schemes, such
as AODV, we demonstrate by extensive simulations that in
many cases of interest our scheme provides substantial trans-
mit energy savings while introducing limited degradation in
terms of throughput and delay.

In this paper, distributed power control is proposed as a
means to improve the energy efficiency of routing algorithms
in ad hoc networks. Each node in the network estimates the
power necessary to reach its own neighbors, and this power
estimate is used both for tuning the transmit power (thereby
reducing interference and energy consumption) and as the
link cost for minimum energy routing. With reference to
classic routing algorithms, such as Dijkstra and Link State, as
well as more recently proposed ad hoc routing schemes, such
as AODV, we demonstrate by extensive simulations that in
many cases of interest our scheme provides substantial trans-
mit energy savings while introducing limited degradation in
terms of throughput and delay.